Wristwatch



FIG. 1 is a perspective view of a wristwatch showing my new design;

FIG. 2 shows a top plan view thereof;

FIG. 3 shows a front elevational view thereof;

FIG. 4 shows a rear elevational view thereof;

FIG. 5 shows a left side elevational view thereof; and,

FIG. 6 shows a right side elevational view thereof.

The broken lines on the watch band indicate stitching, and form part of the claimed design. However, the other broken lines are used for environmental purposes only and form no part of the claimed design. 

The ornamental design for a wristwatch, as shown and described. 